Using multiple representations and changing between them is at the heart of the mathematics classroom; unconnected changes can, however, be obstructive for students' learning. In order to support students' learning with multiple representations, teachers have to link observed situation aspects with relevant professional knowledge, a competence we…

This study contributes on instructional methods from a validation technical point of view. The focus is on the assessment of instructional methods in relation to knowledge processes in the act of learning. By using questionnaires, computer science teachers, mathematics teachers, and English teachers assessed 20 instructional methods in terms of…

This study contributes on instructional methods from a validation technical point of view. The focus is on the evaluation of instructional methods in relation to knowledge processes in the act of learning. In questionnaires, computer science teachers, mathematics teachers, and English teachers evaluated 20 instructional methods in terms of…

Beginning primary teachers' knowledge and beliefs were assessed at the end of teacher education and 4 years later. In addition, they reported about their school context and job satisfaction and took a video-based assessment on their perception, interpretation, and decision-making skills. Research questions were (1) whether we have to deal with a…

Prior research has demonstrated that teachers' professional knowledge and motivation are strongly related to students' learning and motivation. Symptoms of teachers' stress and burnout (e.g., emotional exhaustion) are also thought to influence students' achievement, but no empirical study has tested this prediction. Using multilevel analyses and a…